Code clean-up using convertible-text.

[Lucu.git] / Network / HTTP / Lucu / Headers.hs

diff --git a/Network/HTTP/Lucu/Headers.hs b/Network/HTTP/Lucu/Headers.hs
index e83aa34fdc181022584693abf28578a91b9360b9..e56567e7d665b191a96d08b75dfab9bc781f614c 100644 (file)
--- a/Network/HTTP/Lucu/Headers.hs
+++ b/Network/HTTP/Lucu/Headers.hs
@@ -2,26 +2,29 @@
     FlexibleInstances
   , GeneralizedNewtypeDeriving
   , MultiParamTypeClasses
+  , TemplateHaskell
   , TypeSynonymInstances
   , OverloadedStrings
   , UnicodeSyntax
   #-}
+{-# OPTIONS_GHC -fno-warn-missing-methods #-}
 -- |An internal module for HTTP headers.
 module Network.HTTP.Lucu.Headers
     ( Headers
     , HasHeaders(..)
-
     , headers
-    , printHeaders
     )
     where
 import Control.Applicative hiding (empty)
 import Control.Applicative.Unicode hiding ((∅))
-import Control.Arrow
 import Control.Monad
 import Data.Ascii (Ascii, AsciiBuilder, CIAscii)
 import qualified Data.Ascii as A
-import Data.Attoparsec.Char8 as P
+import Data.Attoparsec.Char8
+import qualified Data.Collections.Newtype.TH as C
+import Data.Convertible.Base
+import Data.Convertible.Instances.Ascii ()
+import Data.Convertible.Utils
 import Data.List (intersperse)
 import qualified Data.Map as M (Map)
 import Data.Collections
@@ -29,7 +32,7 @@ import Data.Collections.BaseInstances ()
 import Data.Monoid
 import Data.Monoid.Unicode
 import Network.HTTP.Lucu.Parser.Http
-import Prelude hiding (filter, foldr, lookup, null)
+import Prelude hiding (lookup, null)
 import Prelude.Unicode
 
 newtype Headers
@@ -68,80 +71,28 @@ instance HasHeaders Headers where
     getHeaders   = id
     setHeaders _ = id
 
+C.derive [d| instance Foldable   Headers (CIAscii, Ascii)
+             instance Collection Headers (CIAscii, Ascii)
+             instance Indexed    Headers  CIAscii  Ascii
+             instance Map        Headers  CIAscii  Ascii
+             instance SortingCollection Headers (CIAscii, Ascii)
+           |]
+
 -- |@'insert' (key, val)@ merges @val@ with an existing one if any.
 instance Unfoldable Headers (CIAscii, Ascii) where
     {-# INLINE insert #-}
     insert (key, val) (Headers m)
         = Headers $ insertWith merge key val m
     {-# INLINE empty #-}
-    empty
-        = Headers empty
+    empty     = Headers empty
     {-# INLINE singleton #-}
-    singleton p
-        = Headers $ singleton p
-    {-# INLINE insertMany #-}
-    insertMany f (Headers m)
-        = Headers $ insertMany f m
-    {-# INLINE insertManySorted #-}
-    insertManySorted f (Headers m)
-        = Headers $ insertManySorted f m
-
-instance Foldable Headers (CIAscii, Ascii) where
-    {-# INLINE null #-}
-    null (Headers m) = null m
-    {-# INLINE size #-}
-    size (Headers m) = size m
-    {-# INLINE foldr #-}
-    foldr f b (Headers m) = foldr f b m
-
-instance Collection Headers (CIAscii, Ascii) where
-    {-# INLINE filter #-}
-    filter f (Headers m) = Headers $ filter f m
-
-instance Indexed Headers CIAscii Ascii where
-    {-# INLINE index #-}
-    index k (Headers m) = index k m
-    {-# INLINE adjust #-}
-    adjust f k (Headers m) = Headers $ adjust f k m
-    {-# INLINE inDomain #-}
-    inDomain k (Headers m) = inDomain k m
+    singleton = Headers ∘ singleton
 
 instance Monoid Headers where
     {-# INLINE mempty #-}
-    mempty = empty
+    mempty  = empty
     {-# INLINE mappend #-}
-    mappend (Headers α) (Headers β)
-        = Headers $ insertManySorted β α
-
--- FIXME: override every methods
-instance Map Headers CIAscii Ascii where
-    {-# INLINE lookup #-}
-    lookup k (Headers m) = lookup k m
-    {-# INLINE insertWith #-}
-    insertWith f k v (Headers m)
-        = Headers $ insertWith f k v m
-    {-# INLINE mapWithKey #-}
-    mapWithKey f (Headers m)
-        = Headers $ mapWithKey f m
-    {-# INLINE unionWith #-}
-    unionWith f (Headers α) (Headers β)
-        = Headers $ unionWith f α β
-    {-# INLINE intersectionWith #-}
-    intersectionWith f (Headers α) (Headers β)
-        = Headers $ intersectionWith f α β
-    {-# INLINE differenceWith #-}
-    differenceWith f (Headers α) (Headers β)
-        = Headers $ differenceWith f α β
-    {-# INLINE isSubmapBy #-}
-    isSubmapBy f (Headers α) (Headers β)
-        = isSubmapBy f α β
-    {-# INLINE isProperSubmapBy #-}
-    isProperSubmapBy f (Headers α) (Headers β)
-        = isProperSubmapBy f α β
-
-instance SortingCollection Headers (CIAscii, Ascii) where
-    {-# INLINE minView #-}
-    minView (Headers m) = second Headers <$> minView m
+    mappend = insertMany
 
 merge ∷ Ascii → Ascii → Ascii
 {-# INLINE merge #-}
@@ -155,6 +106,27 @@ merge a b
       {-# INLINE nullA #-}
       nullA = null ∘ A.toByteString
 
+instance ConvertSuccess Headers Ascii where
+    {-# INLINE convertSuccess #-}
+    convertSuccess = convertSuccessVia ((⊥) ∷ AsciiBuilder)
+
+instance ConvertSuccess Headers AsciiBuilder where
+    {-# INLINEABLE convertSuccess #-}
+    convertSuccess (Headers m)
+        = mconcat (header <$> fromFoldable m) ⊕ cs ("\x0D\x0A" ∷ Ascii)
+        where
+          header ∷ (CIAscii, Ascii) → AsciiBuilder
+          {-# INLINE header #-}
+          header (name, value)
+              = cs name                 ⊕
+                cs (": " ∷ Ascii)       ⊕
+                cs value                ⊕
+                cs ("\x0D\x0A" ∷ Ascii)
+
+deriveAttempts [ ([t| Headers |], [t| Ascii        |])
+               , ([t| Headers |], [t| AsciiBuilder |])
+               ]
+
 {-
   message-header = field-name ":" [ field-value ]
   field-name     = token
@@ -168,7 +140,7 @@ merge a b
 -}
 headers ∷ Parser Headers
 {-# INLINEABLE headers #-}
-headers = do xs ← P.many header
+headers = do xs ← many header
              crlf
              return $ fromFoldable xs
     where
@@ -192,16 +164,4 @@ headers = do xs ← P.many header
       joinValues = A.fromAsciiBuilder
                    ∘ mconcat
                    ∘ intersperse (A.toAsciiBuilder "\x20")
-                   ∘ map A.toAsciiBuilder
-
-printHeaders ∷ Headers → AsciiBuilder
-printHeaders (Headers m)
-    = mconcat (map printHeader (fromFoldable m)) ⊕
-      A.toAsciiBuilder "\x0D\x0A"
-    where
-      printHeader ∷ (CIAscii, Ascii) → AsciiBuilder
-      printHeader (name, value)
-          = A.toAsciiBuilder (A.fromCIAscii name) ⊕
-            A.toAsciiBuilder ": "                 ⊕
-            A.toAsciiBuilder value                ⊕
-            A.toAsciiBuilder "\x0D\x0A"
+                   ∘ (A.toAsciiBuilder <$>)